National Tube Supply’s massive inventory of carbon & alloy mechanical tubing is manufactured to withstand the demanding, high-pressure environments of the oil & gas industry, from exploration and drilling to refining and transportation.

National Tube Supply carries DOM tubing in grades 1020/1026/ST52.3/4130 and CDS 1026/ST52.3/4130 in sizes from .375” OD x .277” ID to 16” OD x 13.5” ID. Carbon HFS is stocked in sizes from 2.5” – 36” OD with various wall sizes. All our mechanical tubing can be heat treated via quench & temper and Charpy impact tested to ensure maximum strength and pressure resistance. And our team of experts will work with you to determine the product and value-added services to fit your project’s tolerance and chemistry requirements.